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Navionics for iPad
- Thread starter dutch123
- Start date
Do a search on it here, and you will find LOTS of discussion about the iPad as a nav device. We use Navionics, others have been pleased with the Navimatic and INavX apps. I like the Navionics app because it is similar to the charting on our Raymarine E-Series. We've been using it as a companion chartplotter since it first came out (along with the app) - two thumbs up.
starcrafttom
Active member
http://www.practical-sailor.com/issues/37_14/features/ipad_nav_apps_10715-1.html
Heres a good read on the subject
Heres a good read on the subject
Actually there is a way to have a gps and navigate without the 3g or 4g. I bought an IPad2 wi-fi only thinking it had a built in GPS, red face, red face. I found a stand alone GPS by Dual (XGPS150) for $100 that connects to my IPad2 via bluetooth and works just fine...and I have no monthly connection fee. I'm told that the new IPad wifi has a gps built in and solves the problem. Its worth checking at an Apple store.
Colobear;
You are correct in pointing out that you can obtain GPS without 3G by purchasing an add on GPS puck for about $100.00. But there is no cost for having the built in 3G chip in the I-Pad and using the GPS programs such as the Navionics for the I-Pad. I have also been using the Tom Tom land GPS program and have no need to connect to any providers and pay any fees other than the original cost of the GPS programs.
Cheers!
Wapiti
You are correct in pointing out that you can obtain GPS without 3G by purchasing an add on GPS puck for about $100.00. But there is no cost for having the built in 3G chip in the I-Pad and using the GPS programs such as the Navionics for the I-Pad. I have also been using the Tom Tom land GPS program and have no need to connect to any providers and pay any fees other than the original cost of the GPS programs.
Cheers!
Wapiti
I was under the impression that because I have a 3G enabled iPhone 4 I can use it as a hotspot for my wifi only iPad. It seems that there is some confusion here from others I have talked to as well. Does anyone know if I can receive a gps signal this way without buying another device like a dual or bad elf?
Dutch123
You can definitely use your current iPhone 3G to receive a Gps signal, and thus run the Navionics and TomTom apps. without any costs other than the app. But whether you can then display in on your iPad I am not sure if this is possible. Maybe some iPad gurus can help with this portion of your question?
Wapiti
You can definitely use your current iPhone 3G to receive a Gps signal, and thus run the Navionics and TomTom apps. without any costs other than the app. But whether you can then display in on your iPad I am not sure if this is possible. Maybe some iPad gurus can help with this portion of your question?
Wapiti
After a little research it seems that when a wifi only iPad is tethered to a 3G iPhone that it does get the gps signal as well! Only thing I'm not to sure of is the update time between the two devices, it's not real time as far as I can tell on the iPad and this may be a bit of a concern.
All Ipads get data from cell sites via wifi, hotspots, or are individually enabled with their own data plan. Each cell site has a gps antenna. Your location is shown on a map if you get sufficient data from cell sites by any means, but not as accurately as you would with an internal GPS chip. The data link to a cell site enables app downloads. This does not mean that your Ipad has GPS capabilities. If you have a dedicated GPS chip in the Ipad, then you can use your Ipad to run navigation apps that require an internal GPS chip. You don't even have to have a data link once you have the download, so you can still use when out of range of cell sites. I have found that many stores selling IPads don't know the difference, and claim all Ipads have "GPS".
cbagle's post is a bit confusing. The WiFi only I pad does not have a GPS chip--and has to rely on other devices to get a GPS "fix". This can be from information from wi fi spots (but not every wi fi spot has a GPS chip --they are known locations). From external GPS receivers, such as Bad Elf etc, or from some some i phones which do have a GPS chip in them. You do not have to have cell tower connection to have a very accurate GPS location and you can use these alternate methods of supplying GPS data.
I have a first generation I pad, which has the 3G enabled feature--but also has a built in GPS. It does not rely on cell towers for position. It is as accurate as any of the several GPS receivers I own.
It will give an accurate GPS position on the Navionics chart well out of range of any cell towers, and without any data plan.
I have a first generation I pad, which has the 3G enabled feature--but also has a built in GPS. It does not rely on cell towers for position. It is as accurate as any of the several GPS receivers I own.
It will give an accurate GPS position on the Navionics chart well out of range of any cell towers, and without any data plan.
As far as I can tell the iPad with 3G has a gps chip that uses AGPS data for faster location data. What is not clear to me is how many satilites it can lock onto when using intergrated gps which is the method used by other chart plotters that is known to be an accurate means of locating your exact position. Of course there is military deviation applied to this signal so it still has some errors. The military version is called p code and I don't think this is available for civilian use as fas I know.
dutch123":1n52h5nz said:As far as I can tell the iPad with 3G has a gps chip that uses AGPS data for faster location data. What is not clear to me is how many satilites it can lock onto when using intergrated gps which is the method used by other chart plotters that is known to be an accurate means of locating your exact position. Of course there is military deviation applied to this signal so it still has some errors. The military version is called p code and I don't think this is available for civilian use as fas I know.
Alongside a Raymarine E-Series and a Garmin chartplotter, the iPad is just as accurate with position. As with any chartplotter, the "accuracy" is dependent on the charting.
We used Loran-C back in the "old days", upgraded to an early Garmin, then a bunch more since... the iPad is a very impressive nav tool. No idea how many satellites it uses, but the accuracy is as good as the dedicated chartplotters we use.
I believe that Dutch is correct that the i pad uses AGPS (that is assisted GPS chipset) because that allows it to find "first fix" from a cold start more rapidly. The "A" has nothing to do with accuracy.
Most likely the I pad uses the SiRF Star III chip set. This is the same chip set used in most small GPS receivers which are highly accurate and will work under the roofs of buildings, in boats or in cars--with some sky view. Generally this chip set tracks 20 satellites (although it can receive all 66 channels)--and picks the best for a spacial fix.
There used to be a degradation of the civilian GPS signal by the military, but that was turned off many years ago. Currently the Military uses a separate code which gives greater accuracy. (Now the M code--the p code was changed to a Y code, and most receivers do access it periodically. Both M and P in its full extent are used by military. ) My understanding is that there are also a second encoded frequency used for the high grad military receivers. There are some changes in the satellites and frequencies in the next few years. The current system is to remain active thru 2015, and then a new system will be phased in (some of the satellites are up already).
A couple of years ago, no GPS worked in your house--now almost all GPS work in the house, and many (including the i pad) will show where you are in the house (assuming that you are not in a concrete or metal windowless building)...
Most likely the I pad uses the SiRF Star III chip set. This is the same chip set used in most small GPS receivers which are highly accurate and will work under the roofs of buildings, in boats or in cars--with some sky view. Generally this chip set tracks 20 satellites (although it can receive all 66 channels)--and picks the best for a spacial fix.
There used to be a degradation of the civilian GPS signal by the military, but that was turned off many years ago. Currently the Military uses a separate code which gives greater accuracy. (Now the M code--the p code was changed to a Y code, and most receivers do access it periodically. Both M and P in its full extent are used by military. ) My understanding is that there are also a second encoded frequency used for the high grad military receivers. There are some changes in the satellites and frequencies in the next few years. The current system is to remain active thru 2015, and then a new system will be phased in (some of the satellites are up already).
A couple of years ago, no GPS worked in your house--now almost all GPS work in the house, and many (including the i pad) will show where you are in the house (assuming that you are not in a concrete or metal windowless building)...
Great discussion :thup and no doubt it will evolve daily with new "apps" and hardware.
Having experienced a couple of unit failures in the past I have two independant GPS units on board (one Raymarine and one Garmin) and also have paper charts.
Recent purchase of a droid and addition of the navionics charts for the whole of western USA and Canada for <$10.- !!! gives me yet another back-up solution.
After discussion with Barry we also purchased a nicely discounted I-Pad 2 with wi-fi only since the 3G edition Vs the Dual (or other) external GPS is a wash in terms of $$. This is more for entertainment and log book etc than for navigation.
Yet another possibility we have is our laptop running Coastal Explorer which has all US Rater and Vector maps plus Canadian Raster charts for the West coast and a cheap GPS puck. CE is fantastic for planning, including working out alternates.
Bottom line is that we can technologically beat this subject to death with a big stick. ALL of the above are far more accurate than the charts which, even for some regularly travelled areas have glaring errors. I can think of at least one marina where the chart data would have you enter over the top of a stone breakwater :disgust
Don't even think about remote areas that have not been accurately surveyed for many years or where the terrain has been modified dramatically by natural events such as landslides etc.
Can't beat the old eyeballs, common sense and experience
M
Having experienced a couple of unit failures in the past I have two independant GPS units on board (one Raymarine and one Garmin) and also have paper charts.
Recent purchase of a droid and addition of the navionics charts for the whole of western USA and Canada for <$10.- !!! gives me yet another back-up solution.
After discussion with Barry we also purchased a nicely discounted I-Pad 2 with wi-fi only since the 3G edition Vs the Dual (or other) external GPS is a wash in terms of $$. This is more for entertainment and log book etc than for navigation.
Yet another possibility we have is our laptop running Coastal Explorer which has all US Rater and Vector maps plus Canadian Raster charts for the West coast and a cheap GPS puck. CE is fantastic for planning, including working out alternates.
Bottom line is that we can technologically beat this subject to death with a big stick. ALL of the above are far more accurate than the charts which, even for some regularly travelled areas have glaring errors. I can think of at least one marina where the chart data would have you enter over the top of a stone breakwater :disgust
Don't even think about remote areas that have not been accurately surveyed for many years or where the terrain has been modified dramatically by natural events such as landslides etc.
Can't beat the old eyeballs, common sense and experience
M
fidalgoisland
New member
I don't know what I am doing wrong but I can not find navionics in the app store. Any ideas?
Thanks.
Thanks.
Captains Cat
New member
fidalgoisland":3aeo1fi2 said:I don't know what I am doing wrong but I can not find navionics in the app store. Any ideas?
Thanks.
Which app store? Apple? one of the non apple cell phone stores?
Charlie
There seems to be some changes. Last night I could not get any of the Marine Navionics, using the i Pad. This AM, on the i tunes store on a Mac The only marine I pad app I can find is the US lakes. I phones shows south America, US lakes and U S lakes and Canada. The Navionics site still shows others available.
My suspicion is that they used the high resolution as a "hooker" to bring folks into their navigation systems, and have now pulled most of these. I am going to download the lakes--I already have all of the US and Canada...
My suspicion is that they used the high resolution as a "hooker" to bring folks into their navigation systems, and have now pulled most of these. I am going to download the lakes--I already have all of the US and Canada...